added reduce ddp results on eval (#2434)
added reduce ddp results on eval (#2434)

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval

* added reduce ddp results on eval
williamFalcon/pytorch-lightning,williamFalcon/pytorch-lightning